Penile Prosthesis for Impotence
For cases of erectile dysfunction that do not have a reversible cause and do not respond to less invasive treatments, a penile prosthesis may be recommended.
Penile implants can either be malleable or inflatable. The malleable implant is the simplest, being just two bendable rods surgically placed into the penis. The penis remains semi-rigid at all times and need only be manipulated into position for sexual intercourse. This type of prosthesis works well for men with limited dexterity (due to arthritis, for example) who would otherwise have difficulty working the inflatable penile pump. This type of prosthesis is the simplest to use, however; the least asthetically appealing.
A more natural option is the inflatable penile prosthesis. It consists of either a two- or three-part system made up of thin tubes, a reservoir and a pump. The tubes are implanted into the penis, while the reservoir and pump are housed in the abdomen and scrotum or just in the scrotum, depending on the type of implant. The man creates an erection by pressing on the pump, which transfers fluid from the reservoir into the cylinders, causing them to inflate. Pressing on a deflation valve returns the penis to a flaccid state.
The three-part penile pump creates the most rigid and natural erection as compared with the other two alternatives. A penile implant does not cause any changes to ejaculation or orgasm.
Penile prostheses have a very high patient satisfaction rate ranging between 92-96%. Since they are totally hidden within the body, it is very difficult to tell just from looking at a man that he has had any type of surgery.